https://www.repairmywindowsanddoors.co.uk/burgess-hill-door-locks-replacement-near-me/ Double Glazed Door Lock Replacement It might seem difficult to replace a double-glazed door lock, but it's not impossible with the proper tools. The replacement of a window lock can help provide extra security and increase your home or business's overall energy efficiency. Remove the retaining screw on the faceplate of the lock cylinder. Then use a screwdriver to twist it to the left and then remove the cylinder. Replacement Cylinders Euro lock barrel locks or door cylinders are available in nearly all uPVC double-glazed uPVC doors. They provide security and reliability, and have been verified to function. A cylinder might require replacement due to a lost or stolen key, but it could be due to age and corrosion. Cylinders are available in a variety of sizes, styles and finishes that will fit your door. Based on your requirements you can pick between cylinders with 1-star or 3-star ratings that are secured by insurance endorsed Kitemarks from BSI. Cylinder locks are a basic pin and barrel system that has been used in uPVC doors for a long time. The drawback of these locks however, is that burglars can easily manipulate them using tools to "snap" and gain entry into the home. We recommend that you replace your cylinders with snap-resistant cylinders to safeguard yourself from this common burglary method. To remove the old cylinder, you must first open your door. Then locate the screw at the door's edge between the outer handle & inner handle. The screw is usually of a different color and will stand out from the rest. With a screw driver, you can remove the screw completely. If the screw refuses to budge then try applying some 3 in 1 type oil and letting it sit for about an hour. This could help, or you can chisel the head of the screw in the direction of unscrewing to shock it loose. Having removed the handle screws, slackening the cylinder by turning it in either direction (the dir